Can't Send Message With Tmobile Error 500 - It started about a week ago and yesterday began working. Web a message blocking active error when sending a text to a specific person means their message blocking is active. Try to restart the gateway. To resolve the gateway error code 500, unplug the gateway device from the power. This has not happened with either of my 6 pros and started happening with my 7. Restart your phonethe first thing you should do is restart your phone.sometimes, a simple restart can fix.
To resolve the gateway error code 500, unplug the gateway device from the power. Web a message blocking active error when sending a text to a specific person means their message blocking is active. It started about a week ago and yesterday began working. Try to restart the gateway. Restart your phonethe first thing you should do is restart your phone.sometimes, a simple restart can fix. This has not happened with either of my 6 pros and started happening with my 7.